path: root/androidApp/src/main/java/mx/trackermap/TrackerMap/android/map/MapFragment.kt

package mx.trackermap.TrackerMap.android.map

import android.graphics.Bitmap
import android.graphics.Color
import android.os.Bundle
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.core.content.res.ResourcesCompat
import androidx.core.graphics.drawable.toBitmap
import com.mousebird.maply.*
import mil.nga.sf.Polygon
import mil.nga.sf.util.SFException
import mil.nga.sf.wkt.GeometryReader
import java.io.File
import mx.trackermap.TrackerMap.android.R
import mx.trackermap.TrackerMap.client.models.Geofence
import mx.trackermap.TrackerMap.utils.MarkerType

typealias MarkerCallback = (Int?) -> Unit

class MapFragment : GlobeMapFragment() {

    data class Marker(
        val id: Int,
        val latitude: Double,
        val longitude: Double,
        val type: MarkerType = MarkerType.DEFAULT
    )

    var markerCallback: MarkerCallback? = null

    private val objects = mutableListOf<ComponentObject>()
    private val geofenceObjects = mutableListOf<ComponentObject>()

    override fun chooseDisplayType(): MapDisplayType {
        return MapDisplayType.Map
    }

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View {
        super.onCreateView(inflater, container, savedInstanceState)
        return baseControl.contentView!!
    }

    override fun controlHasStarted() {
        val cacheDirName = "stamen_watercolor6"
        val cacheDir = File(activity!!.cacheDir, cacheDirName)
        cacheDir.mkdir()

        val tileInfo = RemoteTileInfoNew(
            getString(R.string.maps_tile_url),
            0,
            21
        )
        tileInfo.cacheDir = cacheDir

        val params = SamplingParams()
        params.coordSystem = SphericalMercatorCoordSystem()
        params.coverPoles = true
        params.edgeMatching = true
        params.minZoom = tileInfo.minZoom
        params.maxZoom = tileInfo.maxZoom
        params.singleLevel = true

        val loader = QuadImageLoader(params, tileInfo, baseControl)
        loader.setImageFormat(RenderController.ImageFormat.MaplyImageUShort565)

        val latitude = 23.191
        val longitude = -100.36
        focusOn(latitude, longitude, zoom = 0.4, animated = false)
    }

    override fun userDidSelect(
        mapControl: MapController?,
        selObjs: Array<out SelectedObject>?,
        loc: Point2d?,
        screenLoc: Point2d?
    ) {
        super.userDidSelect(mapControl, selObjs, loc, screenLoc)

        selObjs?.forEach { selectedObject ->
            if (selectedObject.selObj is ScreenMarker) {
                val screenMarker = selectedObject.selObj as ScreenMarker
                val markerId = screenMarker.userObject as Int
                Log.d("MapFragment", "Selected marker with id: $markerId")

                markerCallback?.let { it(markerId) }
            }
        }
    }

    override fun userDidTap(mapControl: MapController?, loc: Point2d?, screenLoc: Point2d?) {
        super.userDidTap(mapControl, loc, screenLoc)

        markerCallback?.let { it(null) }
    }

    private fun clear(geofences: Boolean = false) {
        if (geofences) {
            mapControl.removeObjects(
                geofenceObjects,
                ThreadMode.ThreadAny
            )
            geofenceObjects.clear()
        } else {
            mapControl.removeObjects(
                objects,
                ThreadMode.ThreadAny
            )
            objects.clear()
        }
    }

    fun display(markers: Array<Marker>, isReport: Boolean) {
        Log.d("MapFragment", "Displaying markers")

        clear()

        val points = markers.map { marker ->
            Point2d.FromDegrees(marker.longitude, marker.latitude)
        }.toTypedArray()

        val vectorInfo = VectorInfo()
        vectorInfo.setColor(Color.GREEN)
        vectorInfo.setLineWidth(20.0f)

        /* Draw markers for positions */
        val screenMarkers = markers.mapIndexed { i, marker ->
            val screenMarker = ScreenMarker()
            val markerSize = Point2d(144.0, 144.0)

            screenMarker.loc = Point2d.FromDegrees(marker.longitude, marker.latitude)
            screenMarker.image = if (isReport) {
                // For reports, position, start and end markers must be shown differently
                when (i) {
                    0 -> getIcon(MarkerType.REPORT_START)
                    markers.size - 1 -> getIcon(MarkerType.REPORT_END)
                    else -> getIcon(MarkerType.REPORT_POSITION)
                }
            } else getIcon(marker.type)
            screenMarker.size = markerSize
            screenMarker.userObject = marker.id
            screenMarker.selectable = true
            if (!isReport) {
                screenMarker.layoutImportance = 1.0f
            }

            screenMarker
        }

        val markerInfo = MarkerInfo()
        if (!isReport) {
            markerInfo.setClusterGroup(0)
        }

        objects.add(mapControl.addScreenMarkers(
            screenMarkers,
            markerInfo,
            ThreadMode.ThreadAny
        ))

        /* Draw polyline for report */
        if (isReport && markers.isNotEmpty()) {
            val vector = VectorObject()
            vector.addAreal(points)

            objects.add(mapControl.addVector(
                vector,
                vectorInfo,
                ThreadMode.ThreadAny
            ))
        }

        // Center map to bounds
        if (markers.isNotEmpty()) {
            val mbr = Mbr()
            points.forEach {
                mbr.addPoint(it)
            }
            mbr.expandByFraction(0.1)

            mapControl.addPostSurfaceRunnable {
                val zoom = mapControl.findHeightToViewBounds(mbr, mbr.middle())
                mapControl.setPositionGeo(mbr.middle(), zoom)
            }
        }
    }

    fun displayGeofences(geofences: Array<Geofence>) {
        Log.d("MapFragment", "Displaying geofences")

        clear(true)

        val vectorInfo = VectorInfo()
        vectorInfo.setColor(Color.BLUE)
        vectorInfo.setLineWidth(10.0f)

        val labelInfo = LabelInfo()
        labelInfo.textColor = Color.BLUE

        val shapes = mutableListOf<Shape>()
        val vectors = mutableListOf<VectorObject>()
        val labels = mutableListOf<ScreenLabel>()

        geofences.forEach { geofence ->
            geofence.area?.let { area ->
                Log.d("MainFragment", "Geofence ${geofence.name} = ${geofence.area}")
                try {
                    val geometry = GeometryReader.readGeometry(area)
                    if (!geometry.isEmpty) {
                        when (geometry) {
                            is Polygon -> {
                                val vector = VectorObject()
                                vector.addAreal(geometry.exteriorRing.points.map {
                                    Point2d.FromDegrees(it.y, it.x)
                                }.toTypedArray())

                                vectors.add(vector)

                                val label = ScreenLabel()
                                label.text = geofence.name
                                label.loc = Point2d.FromDegrees(geometry.centroid.y, geometry.centroid.x)
                                label.layoutImportance = Float.MAX_VALUE

                                labels.add(label)
                            }
                        }
                    }
                } catch (e: SFException) {
                    e.printStackTrace()
                }
            }
        }

        geofenceObjects.add(mapControl.addShapes(
            shapes,
            ShapeInfo(),
            ThreadMode.ThreadAny
        ))

        geofenceObjects.add(mapControl.addVectors(
            vectors,
            vectorInfo,
            ThreadMode.ThreadAny
        ))

        geofenceObjects.add(mapControl.addScreenLabels(
            labels,
            labelInfo,
            ThreadMode.ThreadAny
        ))
    }

    fun focusOn(latitude: Double, longitude: Double, zoom: Double = 0.0000144, animated: Boolean = true) {
        val lat = latitude * Math.PI / 180
        val lon = longitude * Math.PI / 180
        if (animated) {
            mapControl.animatePositionGeo(lon, lat, zoom, 0.5)
        } else {
            mapControl.setPositionGeo(lon, lat, zoom)
        }
    }

    private fun getIcon(markerType: MarkerType): Bitmap {
        return ResourcesCompat.getDrawable(
            activity!!.resources,
            when (markerType) {
                MarkerType.ANIMAL -> R.drawable.map_animal
                MarkerType.BICYCLE -> R.drawable.map_bicycle
                MarkerType.BOAT -> R.drawable.map_boat
                MarkerType.BUS -> R.drawable.map_bus
                MarkerType.CAR -> R.drawable.map_car
                MarkerType.CRANE -> R.drawable.map_crane
                MarkerType.DEFAULT -> R.drawable.map_default
                MarkerType.HELICOPTER -> R.drawable.map_helicopter
                MarkerType.MOTORCYCLE -> R.drawable.map_motorcycle
                MarkerType.OFFROAD -> R.drawable.map_offroad
                MarkerType.PERSON -> R.drawable.map_person
                MarkerType.PICKUP -> R.drawable.map_pickup
                MarkerType.PLANE -> R.drawable.map_plane
                MarkerType.SCOOTER -> R.drawable.map_scooter
                MarkerType.SHIP -> R.drawable.map_ship
                MarkerType.TRACTOR -> R.drawable.map_tractor
                MarkerType.TRAIN -> R.drawable.map_train
                MarkerType.TRAM -> R.drawable.map_tram
                MarkerType.TROLLEYBUS -> R.drawable.map_trolleybus
                MarkerType.TRUCK -> R.drawable.map_truck
                MarkerType.VAN -> R.drawable.map_van

                MarkerType.REPORT_POSITION -> R.drawable.map_report_position
                MarkerType.REPORT_START -> R.drawable.map_report_start
                MarkerType.REPORT_END -> R.drawable.map_report_end
            }, activity!!.theme)!!.toBitmap(144, 144)
    }
}